EarCentric EX2 vs Phonak Sphere Infinio Ultra

The EarCentric EX2 is a budget-priced prescription behind-the-ear hearing aid released in 2021, earning a C grade with a SoundScore of 2.7/5 in HearAdvisor's lab testing. At $218, it ranks #33 of 36 prescription hearing aids tested, placing it in the bottom 11% of its category. In our testing, the EX2 showed a significant split in performance. Feedback handling was excellent at 4.7/5, essentially matching the category average and demonstrating stable operation during movement. However, speech performance was notably limited, with both speech in quiet and speech in noise scoring 1.0/5—well below the category averages of 3.32 and 1.96 respectively. Music streaming scored 0.0/5, falling 2.64 points below the prescription category average of 2.64/5. Own-voice comfort scored 2.3/5, a mixed result that sits 0.45 points below the category average. The device uses a rechargeable battery, which adds convenience for daily use. Notably, tuning did not improve performance in our testing—the Initial and Tuned fit scores were identical at 2.7/5. Budget-conscious shoppers in this price range may want to compare alternatives. The RxEars Rxi scored 4.09/5 at a similar price point, while OTC options like the Audien Hearing Atom offer comparable or better sound performance at lower prices. The EX2 may suit users who prioritize feedback stability and rechargeable convenience over speech clarity, but its limited speech performance is a significant tradeoff.

The Phonak Sphere Infinio Ultra is a premium behind-the-ear prescription hearing aid priced at $4,898. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.9/5, placing it in the top 3% of the 36 prescription hearing aids tested and ranking #2 in its category. This device delivers exceptional speech performance in our testing. Speech in noise scored an excellent 4.5/5, a remarkable 2.55 points above the category average of 1.96/5—one of the largest margins we've measured in this critical metric. Speech in quiet also performed strongly at 4.3/5, exceeding the category average by 1.00 point. These results suggest the Sphere Infinio Ultra prioritizes speech clarity across challenging listening environments. Music streaming quality is solid at 3.3/5, sitting 0.66 points above the category average. Own voice comfort scored 2.8/5, which is above the category average but remains mixed in absolute terms—listeners sensitive to occlusion may notice this limitation. Feedback handling measured 4.2/5, which is strong in absolute terms though 0.51 points below the category average of 4.71/5. The Sphere Infinio Ultra is best suited for users who prioritize speech understanding, particularly in noisy environments, and who are prepared to invest in premium technology. Those seeking the highest feedback stability or improved own-voice comfort may want to compare alternatives, though this device's speech performance stands out as a category leader.